<meta name="viewport" content="width=device-width, user-scalable=no, initial-scale=1.0, maximum-scale=1.0, minimum-scale=1.0">
        <meta http-equiv="X-UA-Compatible" content="ie=edge">


    <!-- 计算移动端适配高度 需在样式渲染前加载 -->
    <script>
        getRem(750,100);
        window.onresize = function() {
            getRem(750,100)
        };

        function getRem (pwidth, prem) {
            var html = document.getElementsByTagName("html")[0];
            var oWidth = document.documentElement.clientWidth || document.body.clientWidth ;
            html.style.fontSize = oWidth/pwidth*prem + "px";

        }
    </script>
<div id="loading" style="display: block;">
    <div class="loding-wrap">
        <div class="loading-icon"></div>
    </div>
</div>
<style type="text/css">
	
	#loading {
    position: fixed;
    top: 0;
    bottom: 0;
    left: 0;
    right: 0;
    background: white;
    z-index: 999;
}
#loading .loding-wrap {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%,-50%);
}
#loading .loading-icon {
    width: 1rem;
    height: 1rem;
    border: solid .05rem #ff9100;
    border-radius: 50%;
    border-left-color: transparent;
    border-bottom-color: transparent;
    animation: preloading .5s infinite linear;
}
 @keyframes preloading {
    0%{transform: rotate(0deg);
    }
        100%{
        transform: rotate(360deg);
    }
  }
  @-webkit-keyframes preloading {
    0%{
      transform: rotate(0deg);
    }
        100%{
        transform: rotate(360deg);
    }
  }
</style>